There are 20 words that end with 'grade'.
grade | aggrade | degrade |
regrade | upgrade | misgrade |
paygrade | prograde | subgrade |
downgrade | overgrade | biodegrade |
centigrade | multigrade | intergrade |
orthograde | retrograde | tardigrade |
digitigrade | plantigrade | |
Note: These 20 words that end with 'grade' are found from the USA & Canada version of the tournament Scrabble word list.